AVS › AVS Forum › Display Devices › Rear Projection Units › 2007 Samsung HL-Txx76 Owner's Thread
New Posts  All Forums:Forum Nav:

2007 Samsung HL-Txx76 Owner's Thread - Page 12

post #331 of 1951
Quote:
Originally Posted by davenbone View Post

I just bought the HL-T4675S 2 days ago. Everything seemed fine until today. When I change to one of my cable channels, it goes from color to black and white. When I display the tv guide while I'm on that channel it's also black and white. If i change the channel then the color comes back. I'm wondering if anyone else has this problem. I thought it might just be the channel but that same channel on one of my other tv's doesn't have this issue at all.

Could be the cable box. I would try swapping.
post #332 of 1951
Quote:
Originally Posted by ozcot View Post

As far as I know the bowing issue came about with the thinner cases it was NOT an issue till then.. As far as rainbows may want to look at the LCOS DLP set. Great geometry and no rainbows!! Was all set to buy a Sansung till they droped the ball big time with their new slimmer cases which caused Major geometry problems. Just took the Plunge on a Sony 50KDS2020 for dirt cheap. After a ton of research the only thing the Samsung has over the Sony is the ability to go 1080P with VGA beyond that it appears the Sony wins out on all fronts.

I had 3 separate JVC LCOS sets and they all had geometry issues. All you have to do is grab the frame of your case and push on it slightly to see how easy it is to have a geometry issue with a rear projection TV. I do believe, though, that the Sony's have a stiffer, more solid design then either the JVC or the Samsung. The JVCs that I had had numerous issues with spots on the lens and/or light tunnel, and one had a large yellow blemish develop the required replacement. My wife refused to let me exchange our last JVC for another one.
post #333 of 1951
Quote:
Originally Posted by audiophile42 View Post

the burning plastic smell really freaked me out too, it went away after about a week and a half

Thats kinda what I figured. Thanks for letting me know you smelled it too.
post #334 of 1951
As I created a thread on this. We are looking to access the mirrors and do a self adjustment. Does anyone have instructions on doing this? Thanks. Any help would be much appreciated. Waiting for Samsung to come out and read off instructions the same as i is jsut a waste of time.
post #335 of 1951
Well as stated earlier in this thread my parents had just gotten the 50' about a week ago. We bring it home to find that it had an internal reflection on the bottom of the screen slighty to the right of the Samsung logo. It was very annoying once you noticed it because then you always tended to look for it in dark scenes. It was visible during normal viewing when a dark part was over that part of the screen. So we just decided to return the TV and get a replacement. I really didn't get to check for bowing on the first TV but sure enough the second one has it. Well, once I saw the bowing on the second I didn't even say a word. It isn't my TV and my parents are so happy with this TV and they don't even get HD hooked up till this Wed. It is more prevelant on their screen towards the middle. If they don't notice it and are happy then there is no reason for me to tell them. It would bug me. It is such a good looking TV. To bad this issue seems to really plague it. I'm gonna keep stopping by here though hoping to find a fix.
post #336 of 1951
I noticed while watching King Kong last night that in dark scenes, the parts that are not in focus have a grainy look to it not a hi def look. Whats in focus looks great, but sometimes whats out of focus, it doesn't look blurry and actually looks...just grainy. Does anyone know what I am talking about. Is this something DLP's have?? Please any help.
post #337 of 1951
Quote:
Originally Posted by dsims View Post

I have learned to live with the geometry but is anyone having alot of loud popping coming form the tv? Sometimes it is so loud you can hear it all the way through the house.

No loud popping, but I do have an annoying buzz that comes from the back of the TV. It gets louder in Bright scenes and lower in dark scenes. Anyone have a clue.
post #338 of 1951
This is my first post on AVS, but I have read every single message in this thread, as well as the messages in at least a dozen others. Yesterday was a really disappointing day for me. After staring at the floor model HL-T5076S at CC for about an hour yesterday, I convinced myself that its geometry was fine, and I should give it a shot. That was a bad decision. I brought a brand new set home, hooked up my cable box, and within the first 15 seconds I noticed that the geometry is terrible. The bottom of the menu is squeezed inward and all horizontal lines have a smile shape, just like others on this thread stated. I had my fiancee look, and it took her about 30 seconds to notice it, which is not very long. I can distort the geometry in all kinds of ways by playing with the case, but nothing fixes the squeeze at the bottom of the menu. Unless a fix is published in the next couple of days (I have seen the other thread hoping for a fix) this set is going back. I have two reasons for writing this post: (1) If you are thinking about buying one of these TV's, you have been warned, again. (2) If you have one of these TV's and you notice the poor geometry at all, don't settle for it. Its not paranoia, its a bad design. Return it, even if that means working through Samsung's customer service. This is not my first poor HDTV and it might not be my last poor HDTV, but I'm sticking this out until I find something that works right.

Oh, and since I'm the new guy, and a lot of you also spent your money on this TV, I do feel obligated to point out that other than the geometry, the picture quality is absolutely stunning and every feature I could ask for is present. If Samsung can manage to fix the geometry, this TV will be a real killer.
post #339 of 1951
Quote:
Originally Posted by tneck View Post

My parents just purchased this TV and we just got it set up. I have yet to check for bowing but did notice something else. I wanted to see if anyone on here could help me out. Put in a movie for them and it had black bars on top and bottom. In the bottom black bar a little to the right of the Samsung logo there is a mushroom shaped lighter area. This shape appears lighter than the rest of the black screen. I put on a blank input and it was noticable on that screen too, so it is not source material. It looks as though light is escaping this are more than the rest of the screen. The shape will get larger and smaller too but will not go away. Again, it looks as though more light is shining through. It is easiest to see when you are below the center of the screen. If you are above center it is not visible. This is a brand new TV and I'm dreading hauling it back to the store. Anyone have any ideas as to what this could be?

I had that same exact mushroom 'light shadow' on my DLP. To resolve this issue the tech took apart the DLP and carefully wiped everything clean. The 'light shadow' is just a spec of dust.

On a side note, to correct the bottom bowing, the tech adjusted 3 screws on upper rear of the TV cabinent. There are 6 screws total. There are adjustment screws for the lower right, lower middle, lower left plus lock screws for each adjustment screw. There are similar adjustment screws at the bottom rear for the upper screen.
post #340 of 1951
Quote:
Originally Posted by Muffdiever View Post

I noticed while watching King Kong last night that in dark scenes, the parts that are not in focus have a grainy look to it not a hi def look. Whats in focus looks great, but sometimes whats out of focus, it doesn't look blurry and actually looks...just grainy. Does anyone know what I am talking about. Is this something DLP's have?? Please any help.

I have noticed the same graininess. It's especially frustrating because the HLS that I had had a crystal clear picture. ..I should have never exchanged it!

Does anyone know if there is a way to correct this graininess? The Samsung tech said the picture looks fine. How do you quantify a grainy picture so that Samsung can correct?
post #341 of 1951
Quote:
Originally Posted by Muffdiever View Post

I noticed while watching King Kong last night that in dark scenes, the parts that are not in focus have a grainy look to it not a hi def look. Whats in focus looks great, but sometimes whats out of focus, it doesn't look blurry and actually looks...just grainy. Does anyone know what I am talking about. Is this something DLP's have?? Please any help.


Is Kong the only movie you noticed this with? I have a feeling the grain is an intentional decision on the part of film makers to give a particular look to the film.
post #342 of 1951
After watching my 5676S yesterday for several hours throughout the day I developed a really nasty headache. Could this be cause by the color wheel in the same way that I see rainbows, or could it be that the TV is too bright? I had the brightness and contrast turned way down to reduce the rainbows that I was seeing, but I still felt my eyes strain and still ended up with a headache at the end of the day.

I've read in other places that for some people it takes awhile to become adjusted to DLPs in general, at least for some people. With time will my eyes adjust to the point that I can watch a whole movie without wanting to tear them out?
post #343 of 1951
Quote:
Originally Posted by SRhino View Post

On a side note, to correct the bottom bowing, the tech adjusted 3 screws on upper rear of the TV cabinent. There are 6 screws total. There are adjustment screws for the lower right, lower middle, lower left plus lock screws for each adjustment screw. There are similar adjustment screws at the bottom rear for the upper screen.


What about the middle part of the screen? Or does the combination of the top and bottom affect the middle? Is your perfect now that the tech cme out?

Guys, I also have a good buzzing coming from the back of the TV. It gets louder when the screen gets brighter. Has anyone else had this, and do you think it is the bulb or the color wheel?
post #344 of 1951
Quote:
Originally Posted by inthepit View Post

Is Kong the only movie you noticed this with? I have a feeling the grain is an intentional decision on the part of film makers to give a particular look to the film.

It must be something with the way the movie is made b/c my games don't have it, some dark scenes don't have it and others do. But no bright scenes have it.
post #345 of 1951
Wow I was thinking about getting this set for a replacement to my Mitsubishi 57732 that was bought back.

All of these issues are making me second guess my decision.

My local store is out of them and is expecting a shipment in soon...I would hope Samsung would have this thing worked out before they send out the new batches.

I looked at the LED models but they lacked the pop the lamp set's had and the viewing angles on them were terrible.

Should I hold out and just get last years model?
post #346 of 1951
Quote:
Originally Posted by BDP33 View Post

Should I hold out and just get last years model?

I was thinking the same thing at the time, but I went with the better looking cabinet and the newer technology. The Hl-T's have 3 hdmi's instead of 2. They have the 3D tech, but who knows when and if we will use it. It has a higher refresh rate, and an added color to the color wheel. The HL-S's have there share of problems too. I've looked over the thread and they had bowing issues as welll, amonst other issues. We will hopefully fix this geometry issue soon.
post #347 of 1951
Quote:
Originally Posted by SRhino View Post

I had that same exact mushroom 'light shadow' on my DLP. To resolve this issue the tech took apart the DLP and carefully wiped everything clean. The 'light shadow' is just a spec of dust.

On a side note, to correct the bottom bowing, the tech adjusted 3 screws on upper rear of the TV cabinent. There are 6 screws total. There are adjustment screws for the lower right, lower middle, lower left plus lock screws for each adjustment screw. There are similar adjustment screws at the bottom rear for the upper screen.

Well, my parents decided to take back the first set rather than try to get service tech out. I'm kinda pissed that I didn't check the first one for any bowing. If I would have known that light was only dirt and the TV had no bowing I would have told them to keep the first.

That being said, the second one that we got doesn't show any light marks from dust but does have some bowing. They probably won't even know. They are just happy to have a big TV and I can only imagine how happy they will be when HD gets hooked up this week.

I am very interested in the adjusting screws you mentioned though? Do they seem to tighten the screen or pull it so that it would get rid of the sag or bulge that seems to cause the bowing? I would still like to fix the problem for them it I can.
post #348 of 1951
Can someone please post some pictures or direction on those adjustment screws, it would certainly help a lot of people.

Eliab, I would think you'd have that info.
post #349 of 1951
So i setup the tv and WOW this thing sure does look better in a home than a showroom floor.

first thing I did was run a few tests. First to see how much of the screen the 76s will actually display and to my delight it would appear roughly 98% of the image on any source will be shown WOW i thought maybe a small overscan would be there but nope over 95% of the screen is easily shown. next test was for bowing nope no bowing at all next was verticle accuracy sweet just perfect. happily i then did a test with horizontal lines ... well here in is where my issue is. though extremly slight there appears to be an issue with the lines as they reach the right portion of the screen, they curve up though between a straight line and the edge of the tv the lift is about half an inch difference and the issue starts about 4 inches from the edge of the screen. I am going to likely take this one back and get another before I start with samsung tech other than that this tv is insane on a ps3 and aside from the horizontal issue which is barely noticable this has to be one of the best tv's I have seen in a home ever and the turn on/off chime is cooler than the older ones.

Tested visuals with Pirates of the Caribbean 1-2 on bluray so far and looks rediculously awesome in 1080p.

Tested game mode with Ninja Gaiden Sigma and Super Stardust HD - HDMI 1080p - makes other games, in terms of details, look like pong.
post #350 of 1951
Quote:
Originally Posted by Muffdiever View Post

I was thinking the same thing at the time, but I went with the better looking cabinet and the newer technology. The Hl-T's have 3 hdmi's instead of 2. They have the 3D tech, but who knows when and if we will use it. It has a higher refresh rate, and an added color to the color wheel. The HL-S's have there share of problems too. I've looked over the thread and they had bowing issues as welll, amonst other issues. We will hopefully fix this geometry issue soon.

True...I have a HLT5676" on order I guess I can always return it if it has a lot of the problems that are going on here.

The store manager told me that they are still waiting for the shipment from Samsung. He said usually they are quick on getting them out...maybe they are trying to fix this problem before they send anymore set's out.

Of course that probably is wishful thinking.
post #351 of 1951
Quote:
Originally Posted by BDP33 View Post

True...I have a HLT5676" on order I guess I can always return it if it has a lot of the problems that are going on here.

The store manager told me that they are still waiting for the shipment from Samsung. He said usually they are quick on getting them out...maybe they are trying to fix this problem before they send anymore set's out.

Of course that probably is wishful thinking.

Wishful thinking it is. I would not bring the TV back if you are going to get the same TV. If everything else is working correctly, tkae this advice...keep it! I sent 2 other back and the first one was better than the rest. Deal with Samsung.
post #352 of 1951
Quote:
Originally Posted by Muffdiever View Post

Is this something DLP's have?? Please any help.

It's probably a calibration issue. What DVD player do you have and how is it connected?
post #353 of 1951
I talked to Samsung and I had them describe to me the type of fix they will be peforming on DERG's TV, and mine later this week, if I don't do it myself.

It would be good if someone can try this. The tech described that the tech will come out and loosen the screws on the back of the TV and then push the top of the TV around until the screen realigns the way it should be. She did not specify which screws these are. I am assuming it has to be the side screws, not the top screws, b/c i believe they are for the mirror. They said it works and that they have contacted the service centers regarding it. So this is the second confirmation regarding this. We will have to wait and see, unless someone trys.
post #354 of 1951
VERY interesting do you have her name????????????????????????????? and what should we ask for?????????????????????????????????????
post #355 of 1951
Quote:
Originally Posted by japeezy View Post

This is my first post on AVS, but I have read every single message in this thread, as well as the messages in at least a dozen others. Yesterday was a really disappointing day for me. After staring at the floor model HL-T5076S at CC for about an hour yesterday, I convinced myself that its geometry was fine, and I should give it a shot. That was a bad decision. I brought a brand new set home, hooked up my cable box, and within the first 15 seconds I noticed that the geometry is terrible. The bottom of the menu is squeezed inward and all horizontal lines have a smile shape, just like others on this thread stated. I had my fiancee look, and it took her about 30 seconds to notice it, which is not very long. I can distort the geometry in all kinds of ways by playing with the case, but nothing fixes the squeeze at the bottom of the menu. Unless a fix is published in the next couple of days (I have seen the other thread hoping for a fix) this set is going back. I have two reasons for writing this post: (1) If you are thinking about buying one of these TV's, you have been warned, again. (2) If you have one of these TV's and you notice the poor geometry at all, don't settle for it. Its not paranoia, its a bad design. Return it, even if that means working through Samsung's customer service. This is not my first poor HDTV and it might not be my last poor HDTV, but I'm sticking this out until I find something that works right.

Oh, and since I'm the new guy, and a lot of you also spent your money on this TV, I do feel obligated to point out that other than the geometry, the picture quality is absolutely stunning and every feature I could ask for is present. If Samsung can manage to fix the geometry, this TV will be a real killer.

Welcome to the forum and thanks for that review. I was very much also interested in this TV (or at least a Samsung DLP w/ HDMI 1.3; the HL-Txx89S is too pricey for me). I'm now having 2nd thoughts.

However, from what Muffdiever just posted above, maybe there is some hope. I'll wait out this month and see how the fix shakes out before I buy a TV in Aug. Good luck to all of you who have this Samsung TV.
post #356 of 1951
Quote:
Originally Posted by OniMirage View Post

VERY interesting do you have her name????????????????????????????? and what should we ask for?????????????????????????????????????

No, no name. All I said was that I had that buzzing in the back of the TV as well as a bowing problem, where it sloped upwards on the horizontal lines. They then transferred me to another support group that said they have a fix for it and the tech that comes to your house will know what to do. I then responded about if this was recent, b/c i had a tech come out and just do tilt adjustments to try and fix it, and it didn't. So I asked her to describe the fix to me, which I posted above.
post #357 of 1951
Have not tried to cal using CCA yet. Only user menu.

Started with Eliab's recommendations for the LEDs and tweaked with Getgray and DVE

Movie mode
Contrast 70
brightness 45
color 45
tint 50-50
DNR off dynamic contrast, bright off
gamma 0
all other settings off or neutral

I used my I1pro spectro w/Calman and HCFR to determine detailed setting user White balance of -4 is closest to D65 with pretty flat grayscale (HCFR Delta E of 2-5), Gamma a little high at 2.78 average. I have not measured the other user gamma settings yet. CIE with sRGB option primaries are close except green, secondaries off quite a bit, I turned service menu gamma to 0, Played with sharpness in the esp menu a little but found sharp filter off too soft. Hope this helps.

Alvin
post #358 of 1951
I just got back from best buy today where they had the 50-56-6176 models and I noticed bowing on all the models EXCEPT the 6176. This of course could be just by chance but has anybody else had the bowing issue with the 61 inch model? the 56 inch had obvious bowing in a downward motion throughout the screen. the 50 inch was a little odd, it only had bowing in a downward motion in the bottom right corner. it does seem that it would be fixable in my opinion. I am no expert on how DLP works, but I would imagine it works with the idea of having the lamp reflect light off of mirrors and creating colors from the refraction of the light. The colors are not distorted in this bowing, but somewhere along the line the light is coming off the mirrors wrong so it seems reasonable to believe that the entire grouping of mirrors(however they are set up within the TV), is completely shifted. I think of the idea of when you project an image on a wall and then tilt it more and the image bows and becomes distorted(especially off of a mirror). However, I viewed the 50 inch bowing in one corner only which would lead me to believe that it would have to deal with an individual mirror. Like I said, I am definitely no expert on DLP, nor do I work for Texas Instruments, plus there are millions of these mirrors so its boggling to think about.
post #359 of 1951
Quote:
Originally Posted by 1jeffcat View Post

Like I said, I am definitely no expert on DLP, nor do I work for Texas Instruments, plus there are millions of these mirrors so its boggling to think about.

The mirrors we speak of are not the tiny mirrored chip, it's actual mirrors that reflect the image on the screen. I have heard of someone else with the 6176 with the problem and another with the 6176 who said he has no problems. It seems more prevalent in the below 61's, but a 61 is just too big for my room. The screen could be not positioned correctly on one side and not the other. We will find out from DERG on thursday.
post #360 of 1951
Quote:
Originally Posted by Muffdiever View Post

The mirrors we speak of are not the tiny mirrored chip, it's actual mirrors that reflect the image on the screen. I have heard of someone else with the 6176 with the problem and another with the 6176 who said he has no problems. It seems more prevalent in the below 61's, but a 61 is just too big for my room. The screen could be not positioned correctly on one side and not the other. We will find out from DERG on thrursday.

So is the light being projected through the chip and then hitting a larger mirror to bring it up onto a screen? If that would be the case then it would make more sense that the deflecting mirrors be out of alignment. I don't know why it would be less prevalent on the smaller screen...maybe just random coincidence sense most people buy the smaller screens.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Rear Projection Units
AVS › AVS Forum › Display Devices › Rear Projection Units › 2007 Samsung HL-Txx76 Owner's Thread